Quote Originally Posted by Spartan_Aoues View Post
The reason you pull the next set when prev set is low is 1.dps will kill mobs before or during the next pack pulls 2. reduces healing requiremented letting healers reposition for next packs put regs or dps 3.faster and soother dung experience
If you pull more after committing to a pull and getting it low, proceed to pull the next wave while the current wave is still alive, then the healer and the team is not regenerating HP/MP out of combat, causing them to only heal up at the rate at which their tenacity/piety stats give them during combat. This is more often much lower for healers and caster DPS for MP and much lower for everyone for healing HP compared to out of combat regeneration. For casters, it can interrupt their cast when enemies are pulled too far out of their attack range.

The healing requirements are only reduced when you pull large packs and kill them all before pulling more because tank mitigations will always be up during the pull, mitigations will have time to come off cooldown while moving to the next big pull, DPS will get to use their burst skills and AoE everything at once so everything dies faster (which means tanks get hit less times), and healer HP/MP will have time to regenerate while their abilities come off cooldown during the run to the next big pull.